Dive into the captivating world of "Number Up" a simulation game that challenges your wit and reflexes in a dynamic 4x4 grid environment. Your goal is clear: maximize your score as you navigate through a whirlwind of changing values represented by buttons.

In "Number Up," each button on the 4x4 grid holds one of four potential values: Green (increases value by X), Red (decreases value by X), and Blue (increases value by 2*X) and the default value (). But here's the catch - these colored values appear every few seconds in rapid-fire sequences, revealing five instances in quick succession.

Your task is to swiftly tap the buttons corresponding to the displayed values before time runs out. Beware, though, as the time allotted for selecting a button decreases with each round, pushing your reflex skills to the limit.

In this simulation, you have three hearts at your disposal. Lose a heart if you fail to select a button during the value revelation or if you choose a button without the displayed values. The pressure is on, and every decision counts!